var Base64 = {
 
	// private property
	_keyStr : "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=",
 
	// public method for encoding
	encode : function (input) {
		var output = "";
		var chr1, chr2, chr3, enc1, enc2, enc3, enc4;
		var i = 0;
 
		input = Base64._utf8_encode(input);
 
		while (i < input.length) {
 
			chr1 = input.charCodeAt(i++);
			chr2 = input.charCodeAt(i++);
			chr3 = input.charCodeAt(i++);
 
			enc1 = chr1 >> 2;
			enc2 = ((chr1 & 3) << 4) | (chr2 >> 4);
			enc3 = ((chr2 & 15) << 2) | (chr3 >> 6);
			enc4 = chr3 & 63;
 
			if (isNaN(chr2)) {
				enc3 = enc4 = 64;
			} else if (isNaN(chr3)) {
				enc4 = 64;
			}
 
			output = output +
			this._keyStr.charAt(enc1) + this._keyStr.charAt(enc2) +
			this._keyStr.charAt(enc3) + this._keyStr.charAt(enc4);
 
		}
 
		return output;
	},
 
	// public method for decoding
	decode : function (input) {
		var output = "";
		var chr1, chr2, chr3;
		var enc1, enc2, enc3, enc4;
		var i = 0;
 
		input = input.replace(/[^A-Za-z0-9\+\/\=]/g, "");
 
		while (i < input.length) {
 
			enc1 = this._keyStr.indexOf(input.charAt(i++));
			enc2 = this._keyStr.indexOf(input.charAt(i++));
			enc3 = this._keyStr.indexOf(input.charAt(i++));
			enc4 = this._keyStr.indexOf(input.charAt(i++));
 
			chr1 = (enc1 << 2) | (enc2 >> 4);
			chr2 = ((enc2 & 15) << 4) | (enc3 >> 2);
			chr3 = ((enc3 & 3) << 6) | enc4;
 
			output = output + String.fromCharCode(chr1);
 
			if (enc3 != 64) {
				output = output + String.fromCharCode(chr2);
			}
			if (enc4 != 64) {
				output = output + String.fromCharCode(chr3);
			}
 
		}
 
		output = Base64._utf8_decode(output);
 
		return output;
 
	},
 
	// private method for UTF-8 encoding
	_utf8_encode : function (string) {
		string = string.replace(/\r\n/g,"\n");
		var utftext = "";
 
		for (var n = 0; n < string.length; n++) {
 
			var c = string.charCodeAt(n);
 
			if (c < 128) {
				utftext += String.fromCharCode(c);
			}
			else if((c > 127) && (c < 2048)) {
				utftext += String.fromCharCode((c >> 6) | 192);
				utftext += String.fromCharCode((c & 63) | 128);
			}
			else {
				utftext += String.fromCharCode((c >> 12) | 224);
				utftext += String.fromCharCode(((c >> 6) & 63) | 128);
				utftext += String.fromCharCode((c & 63) | 128);
			}
 
		}
 
		return utftext;
	},
 
	// private method for UTF-8 decoding
	_utf8_decode : function (utftext) {
		var string = "";
		var i = 0;
		var c = c1 = c2 = 0;
 
		while ( i < utftext.length ) {
 
			c = utftext.charCodeAt(i);
 
			if (c < 128) {
				string += String.fromCharCode(c);
				i++;
			}
			else if((c > 191) && (c < 224)) {
				c2 = utftext.charCodeAt(i+1);
				string += String.fromCharCode(((c & 31) << 6) | (c2 & 63));
				i += 2;
			}
			else {
				c2 = utftext.charCodeAt(i+1);
				c3 = utftext.charCodeAt(i+2);
				string += String.fromCharCode(((c & 15) << 12) | ((c2 & 63) << 6) | (c3 & 63));
				i += 3;
			}
 
		}
 
		return string;
	}
}

$(document).ready(function() {

	$("#search_input").autocomplete({
		//define callback to format results
		source : function(req,add){		
			$.ajax({
				type : "GET",
				//url : "scripts/articleIds.xml",
				//dataType : "text",
				
				//url : "/solr/events/terms?terms.fl=entity&terms.limit=20&terms.prefix="+$("#search_input").val(),
				url : "/solr/events/terms?terms.fl=entity&terms.limit=20&&terms.regex.flag=case_insensitive&terms.regex="+$("#search_input").val() + ".*",
				dataType : "xml",
				success : function(xml) {
					parseXml(xml,add);
				}
			});
		},
		//define select handler
		select: function(e, ui) {
			//create formatted friend
			$("#search_input").val('"' + ui.item.value + '"');
			//document.searchForm.submit();
			return false;


		},
		//disable the mouse focus issue
		focus: function(e,ui) {
		    return false;
		}


	})
});	


function containSuggestion(qh, suggestions){
	//alert (suggestions.length);
	for (var i = 0; i < suggestions.length; i++){
		//alert (suggestions[i]["value"]);
		if (qh == suggestions[i]["value"]) return true;
	}
	return false;
}

function trim(str){
	return str.replace(/^\s+|\s+$/g, '') ;
}


function parseXml(xml,add) {
	var suggestions = [];
	var query = $("#search_input").val().toLowerCase();
	query = trim(query);
	
	var names = [];
	var counter = 0;
	//alert(xml);
	// we want just 10 results
	$(xml).find("lst").each(
			function() {
				if ($(this).attr("name") == "entity") {
					$(this).find("int").each(
							function() {
								var name = $(this).attr("name");
								var nrResults = $(this).text();
								//avoid inserting duplicates and just have 10 results
								if(jQuery.inArray(name,names)<0 && counter<10){
									names.push(name);
									var suggestion = {value:name, label:name, nr:nrResults};
									suggestions.push(suggestion);
									counter++;
									
								}
							});
				}
			});
	add(suggestions);
}